How to solve virtual welding issue in soldering process of soldering machine?

The automatic soldering machine keeps the welding head clean. Generally, the automatic soldering machine is prone to fly dust when it works at high temperature, or the soldering iron head of the energized automatic soldering machine is in a high temperature state for a long time, and its surface is easily oxidized or burned to death, which makes the soldering iron head conduct heat. The performance deteriorates and the welding quality is affected. Therefore, in order to improve the life of the soldering iron head, many soldering machines are equipped with automatic air blowing devices. So how to solve virtual welding issue in soldering process of soldering machine?

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How to solve virtual welding issue in soldering process of soldering machine?

How to solve virtual welding issue in soldering process of soldering machine?

The working time of the soldering machine should not be too long, and the proper use of the soldering time is also an important part of the soldering process. If it is the soldering of the circuit board plug-in, it is generally appropriate to take 2 to 3s. If the soldering time is too long, the flux in the solder will be completely volatilized, the soldering effect will be lost, the surface of the solder joint will be oxidized, and the surface of the solder joint will be rough, black, not bright, with burrs and other defects. The function of the flux is to quickly fill the pad with tin after the tin wire contacts the soldering iron tip in a high temperature state. The higher the flux content in the tin wire, the faster the melted tin fills the pad. Among the peers of the automatic soldering robot, the flux content of the tin wire is required to be about 3%.

The solution to the virtual soldering in the automatic soldering machine is generally that the soldering iron tip contacts the pad and presses it as much as possible to facilitate heat conduction. The soldering temperature should be appropriate, neither too high nor too low (temperature control is very important). During the solidification of the solder joint, remember not to touch the solder joint with your hands. Before the solder joints are completely solidified, even a small vibration will deform the solder joints and cause false welding. Therefore, the welding parts should be fixed before the soldering iron tip is withdrawn, and the time for the solidification of the solder joints should be reserved.

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